The Iron-clad Golden Dog is a dog breed with a unique coat color. Its name comes from its special coat color characteristics: the top of the eyes, chin and the palms of the limbs are golden yellow, while the top of the palms are black. This color distribution Making them look like iron (black) wrapped in gold (golden yellow). This coat color characteristic is particularly common in Tibetan Mastiffs, so the Iron-clad Golden Dog is often considered a breed of Tibetan Mastiff.

It is worth noting that the coat color of the Tibetan Mastiff is bred through human intervention, usually Produced by breeding modern Rottweilers with modern Tibetan Mastiffs. The Rottweiler is an extended branch of the ancient Roman giant mastiff, and is a mastiff dog like the Tibetan Mastiff. This coat color has high value and rarity among Tibetan Mastiffs, so it may be relatively expensive in the market.